Eilter-hood mechanism



H.'N. KILBY.

FILTER HOOD MECHANISM. APPLICATION FILED'Dms, w11.

Patented July '22, 1919.

HERBERT N. KILBY, 0F CLEVELAND, OHIO. y

FILTER-HOOD MECHAN ISM.

Specification of Letters Patent.

Patented July 22, 1919.

Application led December 6, 1917. Serial No. 205,760.

To all whom t may concern:

Be it known that I, HERBERT N. KILBY, a citizen of the United States,-residing at Cleveland, in the county of Cuyahoga and State of Ohio, have invented certain new and useful Improvements in Filter-Hood Mechanism, of which the following is a specification.

This invention relates to various types of fluids may be cleansed or filtered by a circulation therethrough. In this connection, it may be stated that my filter is designed especially for use `in` collecting and filtering out sediment or caking materialI from such liquors as are produced in the manufacture of sugar.

The main object of my invention resides in the provision of a novel type ofmeans whereby the movable parts forming the iuclosing casing structure may be securely and filters, wherein pivotally associated, the means for accomplishing the pivoting of said movable or separable parts being of such nature as to permit of relative adjustment between said parts, whereby in the event of the latter becoming warped or unduly curved or bent, such curvature may be readily removed by adjusting the pivoting mechanism.

Other objects will be in `part obvious and in part pointed out hereafter.

The invention fur-ther constitutes an improvement upon the structures disclosed in my previous patents bearing Numbers 1,229,755 and 1,211,859. i

For a further disclosure of the invention, reference isto be hadto the following description. and to the accompanying drawings, wherein is shown the referred embodiment of my. invention. n these drawings, similar characters of reference designatecorresponding parts, and in which:

`Figure lI is an end elevation of a filter press disclosing the features of my invention.'

Fig. 2 is a plan view of the pivoting mechanism for use in connection with the separable parts of the filter, and Fig. 3 is a side elevation of the'mechanism disclosed in Fig. 5.

Referring moreparticularly to the drawing, the lilter illustrated consists of an upright back plate 1, whichis preferably suported by means of side standards 2. The ack plate is provided along its upper surface` with a series of lugs or bearingsl 3*,

the `latter are suitably spacedpand extendf throughout the length of the filter. In each bearing or lug, there is provided a horizontal opening 4L, for the reception of the threaded shank of a bearing bolt 5, the lat ter being formed with an enlarged head 6, which receives a transversely extending pivoting shaft 7, it being understood that the shafts 7 are equal in numberto the bearings 3. Said shafts are rigidly connected with the heads of the bolts 5 by means of set screws 8, which frictionally engage with the shafts 7 and prevent undue movement on part of said shafts within the heads of the bearing bolts. The shank of each bolt 5 is threaded to receive binding nuts 9, which press against opposite surfaces of the bearings 8 in order to retain said shafts in rigidly adjusted positions.

Pivotally connected with the shafts 7 is a semi-oval hood member 10, which is pivotally movable toward and away from the back plate 1, as is common in filters of this character. The hood member andV back plate coperate to form an inclosing casing structure for the usual filter elements (not shown) of the press, said elements as usual being so constructed that the cake or sediment is filtered out of the juice in the ordinary manner. Fluid is introduced into the interior of the casing through the inlet pipe 11, and when filtered is withdrawn from the filter elements or casing by means cf'the outlet `pipes shown at 12 and 13, the pipes l2 all beingconnected with the main or manifold pipe 14.

The upper surface of the hood member 10 is provided with a series of attached plates 15, or their equivalent, which are suitably secured to the hood member in any preferredand substantial manner. The plates are formed with upwardly extending, spaced `17 which are adapted to permit a limited degree of lateral movement on part of the shaft 7 and consequently on part of the hood member 10 toward the back plate l. This construction forms an essential feature of the invention, as practice has disclosed that, due to various reasons, the hood member or the back plate is liable to buckle or bend at different points along` the line of jointure existing between said separable casing parts, and when this occurs the filter is rendered substantially ineffectual or leaky. .Therefore, I'have provided this previously described construction, which is individually adjustable throughout. the length of the filter, whereby if certain portions of said filter should become warped or bent, such curvature may be readily taken up by simply tightening the binding nuts 9 so that the hood member 10 at desired intervals or points may be drawn into closer engagement with the cooperating surface of the back plate 1. This take-up adjustment insures a firm relation between the members 1 and 10 throughout the life of the filter and greatly increases the efficiency thereof.

The hood member is swung to its open or elevated position by providing the same at each side with elevating links 18, the lower extremities of the latter being pivotally connected with pistons 19, slidable in cylinders 20. A suitable fluid may be admitted into or withdrawn from the cylinders by means of pipes 21, leading to any convenient source of fluid supply, whereby -when fluid is admitted into said cylinder, the piston 19 will be reciprocatcd to effect the elevation thereof and the consequent raising of the hood member. This mechanism has been substantially` disclosed in my former Patent No. 1,229,755, and it is therefore not thought necessary to specifically describe the advantages or peculiar features of this construction.

Thehback plate 1 is also provided with a series of bearings to rotatably support a plurality of longitudinally extending shafts 25 and 26, which shafts form a means for supporting and operating the locking structure B for the lower part or edge of the hood member 10. This locking` structure comprises a series of locking members disposed side by side along tht` opposite longitudinal lines of jointure between the hood member and back plate. The locking members themselves are `rectangular in shape and are designated by the reference numeral 27. As has been indicated with clearness in Fig. 1, these locking members have their longitudinal sides provided with slotted openings 28, through which the shaft 26 passes. The forward endgof each of these locking members is provided with a bolt 29, threaded into position within the locking members and held in such position by means of set screws 30. The extremities of the bolts are also provided with outer nuts 31. These bolts and `nuts 31 are adapted to engage with depending enlarged lugs 32, integrally formed upon the lower edge of the hood member 10 and disposed in spaced relation throughout the length lof said hood member. The locking members are actuated by means of toggles formed of toggle arms 33 rigidly keyed to the shaft 26, the keyway extending throughout the length of said shaft so that all of said toggle arms will rotate in unison, said arms pivotally carrying at their forward ends, as indicated at 34, toggle links 35. These toggle links are also pivotally connected at their opposite ends by means of pins or bolts, as shown in 36, to the locking members, and also carried by the extreme outer end of said locking members is a countcrbalancing weight 37, the latter being suitably4 secured to said locking members through the medium of screws or their equivalents 38, the purpose of said weights being to maintain the toggle construction in an uncramped position, and this action has been clearly disclosed in Figs. 2 and 3 of the drawing.

The manner of operating these toggle locks is as follows: y

The shaft 25 is manually turned, by means of the wheel 39 and thereby rotates a fixed pinion 40, the latter being in mesh with a toothed sector 111 keyed to the shaft 26, so that the movement of the shaft will impart synchronous movement to the lower shaft. The rotation of the shaft 26 causes a slight turning of the toggle arms 33, and a consequent pull upon the toggle links 35. This breaking action of the toggles causes a corresponding pull on the locking members 27 so as to move` the latter out of clamping engagement with the lugs formed on the lower edge of the hood member, which movement is permitted by means of the elongated openings 28. Further turning of the shafts 25 and 26 willswingthe bolts 29 and their associated locking members 27 above the shaft 26, whereby the nuts 3l will clear the hood member lugs, so that said member may be swung without interference to its elevated or open position. It will be noted that the locking member will assume such an inclined position, that matter discharged from the hood member will not engage with the locking structure. The counter weight 37 is employed to prevent the toggle arrangement carried lby the locking members from assuming a cramped position. In other words, the locking member is prevented, by the action of the counterweight, from moving in an 1mcontrolled manner with relation to the toggle arms 33, as if the weight were not provided, said locking structure-might have a tendency to swing past its center C and thereby interfere with the return or normal operation of said locking structure. However, the counter weight retains said locking member in its lcorrect association with its toggle arm 33 and insures synchronous operation between the same. It will be noted that when thewshaft 26 is initially vrotated thatthe locking members 27 will first 'move inwardly soV as to free the nuts 31 from 130 clamping engagement with the hood carried lugs, and whereby upon the continued rotation of said shaft 26, said locking members may be conveniently revolved without interfering with Ithe hood member. The threaded connection existing between the 'bolts 29 and the locking member 27 permit the locking structure as a whole to be individually adjusted throughout the length of the filter, whereby in the event o-f the lower part of the hood member becoming bent or warped at different points, such curvature may be readily overcome by simple adjustment of the bolt 29 with rel-ation to its associated locking memlber 27.

From the foregoing, it will be apparent that I have provided a very efiioienrt type of lock for holding the separable parts of the filter casing in their locked position, and' moreover such lock is designed for individual adjustment, so that undue curvature in the length of the separable casing parts 'may be readily overcome and eliminated.

This feature forms 'the salient feature of the invention. The mechanism described is strong and durable in every respect, being ful-ly designedl to meet the requirements of the excessive pressure imposed upon the lter, and it will ybe seen that all of the parts are capable of being readily and conveniently operated.

Having .described the invention, what is claimed as new and patentable is:

l. In a two part filter press casing, means for pivotally joining the sections thereof comprising complemental bearing arms on each part having shaft receiving openings, one set of which is elongated to permit play7 and addi-tional means for locking said shaft in any position of adjustment in said elongated openings.

2. In a two part filter press casing, means for pivotally joining the sections thereof comprising a plurality of sets of complemental bearing arms on said parts having shaft receiving openings, an individual pivot sha-ft for each set of complemental arms, and means for individually adjusting each shaft to alter its pivot position to bring the parts into firm engagement irrespective of any distortions.

' 3. Y In a two part filter press casing, means for pivotally joining the sections thereof comprising a plurality of sets of complemental bearing arms on said parts having shaft receiving openings therein, one set of arms permitting lateral adjustment of the shafts, `and additional means carried by that part of the casing on which the bearing arms permitting adjustment of said shafts are situated for individually locking said shafts in the desired position of adjustment.

4. In a two part filter press casing, means for pivotally joining the sections thereof comprising complemental bearing arms and a pivot shaft coperating with said arms, said shaft being mounted to permit lateral adjustment in at least one of said arms, and means for holding the shaft in its position of adjustment.

5. In a two part filter press casing, means for pivotally joining the sections thereof comprising a complemental set of bearing arms arranged on said parts, said arms being bored to receive a pivot shaft, one bore being enlarged to permit lateral play of the shaft therein, an-d a bolt secured to said shaft and adjustedly mounted in the bearing arm structure having the enlarged bore.

In testimony whereof I affix my signature in presence of two witnesses.

HERBERT N. KILBY.

PAUL TEICHERT.

copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

